Abstract: A railroad asset inspection management system includes a plurality of remote terminals each having a user interface and a remote local database. A server includes a server database partitioned into a plurality of database partitions each associated with a territory of a railroad track system. When a remote terminal establishes a connection with the server, the server transmits changes in work orders stored in the server database partition corresponding to the territory in which the selected remote terminal is operating to the local database of the remote terminal and changes to inspection data stored in the local database of the remote terminal are transferred to the server database partition corresponding to the territory in which the selected remote terminal is operating.

Abstract: A method of providing an indication of the direction of a target such as a sniper. A rifle mounted sensor array detects an acoustic pulse originating from the target. The signal is processed to estimate the direction of the target, and an indication is provided when the weapon is aligned with the estimated direction. The direction of arrival of an acoustic pulse is estimated by spectrally decomposing each signal from the sensor so as to generate one or more spectral components for each signal, and processing the spectral components to estimate the direction of arrival.